01. Arc Fault Detection Devices Fact Sheet - An Introduction to AFDD's

08 March 2022

Introduction to AFDDs

Modern technology within AFDDs now makes it possible to detect & disconnect dangerous arcs and enhance protection standards for people and property. Arc fault detection devices (AFDDs) disconnect the electricity supply when the presence of dangerous electrical arcs is detected, thus preventing the outbreak of fire.

Historically, the use of overcurrent and residual current protection has vastly reduced the risk and consequence of electrical fires from overload conditions or earth leakage faults. However, these devices cannot detect electric arcs in cables and connections nor prevent the fires that such electric arcs can cause.